Tapered Profile Aluminium Channel Extrusion with Cover 15mm x 25mm is made from high-quality Aviation 6063-T5 aluminum alloy with Double-Anodized and is designed for flexible or rigid LED strips that are 12mm wide. One of the accessories offered for the extrusion are covers that shade and protect LEDs inside the profile. There are several cover options: Clear, Frosted, Milky. Covers are made of polycarbonate and are certified for excellent resistance to all weather conditions and UV radiation, as well as being flame-retardant. Standard polypropylene end caps and mounting brackets (made from steel with zinc or chrome finish) are used for the extrusion as supplementary accessories. End caps protect the extrusion from dust and other undesirable elements, which can make LED strips dirty and consequently deteriorate the lighting parameters. The extrusion can be mounted to surfaces with the use of double-sided adhesive tape or mounting brackets. The mounting bracket guarantees easy and secure mounting of the extrusion to the desired surface. It can also be used as a connector between extrusions.